System and method for verifying screw threads

ABSTRACT

A thread gauge inspection apparatus includes a receiving member to hold a reference thread gauge and a motor to bi-directionally rotate the reference thread gauge. A counter counts a number of turns the reference thread gauge is rotated by the motor, and a torque monitoring device monitors the torque produced by the motor as the reference thread gauge is rotated. A controller, when the monitored torque exceeds a predetermined value, causes the motor to stop rotating the reference thread gauge and causes the counter to stop counting the number of turns the reference thread gauge is rotated. The controller compares the count produced by the counter with an inputted specific turn count and indicates the thread quality of threaded hole or a threaded stud passed inspection when the count produced by the counter is equal to the inputted specific turn count.

PRIORITY INFORMATION

The present application claims priority, under 35 U.S.C. §119(e), fromU.S. Provisional Patent Application Ser. No. 61/930,549, filed on Jan.23, 2014. The entire content of U.S. Provisional Patent Application Ser.No. 61/930,549, filed on Jan. 23, 2014, is hereby incorporated byreference.

BACKGROUND

Thread inspections are a necessary part of many manufacturing or qualitycontrol procedures. These thread inspections may involve the spinning ofexternally or internally threaded gauges into threaded holes or ontothreaded studs, respectively. The threaded holes or studs may beintegral parts of machines or just fastener parts, such as nuts orbolts.

Go and No-Go Gauges have been, conventionally, used as screw threadinspection devices, throughout the machining industry, for thefunctional inspection for acceptable pitch, diameter, lead angle, threadcrest, and root dimensions of a thread.

It is further noted that, conventionally, power driven spindles, onwhich gauges are fitted, have been used to facilitate rapid and uniformtesting of screw threads.

For example, U.S. Pat. No. 4,926,700 discloses a blind hole thread gaugeusing a modified commercial nut driver. U.S. Pat. No. 4,926,700discloses the use of strain gauges to monitor torque during testing, aswell as, sensing when a given hole has been tested to its proper depth.The entire content of U.S. Pat. No. 4,926,700 is hereby incorporated byreference.

In another example, U.S. Pat. No. 7,059,055 discloses a commercialtester for checking the presence of threads in blind holes. Both singlespindle and multi-spindle devices are described, which use adjustableslip clutches to limit the torque applied during testing. Upon detectingthe proper depth of testing or upon exceeding the torque limit, U.S.Pat. No. 7,059,055 discloses that the tester automatically reverses thedrive motor to disengage the gauge from the hole being tested. Theentire content of U.S. Pat. No. 7,059,055 is hereby incorporated byreference.

In further examples, U.S. Pat. No. 7,661,196 and U.S. Pat. No. 7,941,932disclose a compact hand-held ergonomic thread inspection tool that ispower driven, which uses current draw or a mechanical clutch, as asurrogate for torque, to initiate automatic reversal and gaugewithdrawal in case of jamming. U.S. Pat. No. 7,661,196 and U.S. Pat. No.7,941,932 disclose that if a maximum torque is reached before a limitsensor is tripped, an alarm is initiated (indicating a defectivethread), and the rotation of the thread gauge is reversed.

In other words, U.S. Pat. No. 7,661,196 and U.S. Pat. No. 7,941,932determine if a threaded hole or stud is too short, the threads areuntrue, or the threaded hole or stud is skewed away from the desiredaxis. The entire contents of U.S. Pat. No. 7,661,196 and U.S. Pat. No.7,941,932 are hereby incorporated by reference.

As noted above, parts containing blind machined threaded bores oftenrequire inspection of the threads to verify for consistency before themachined parts can be shipped or assembled.

For example, the machining specification for a machined threaded boremay call for the machined threaded bore to have between 5.5 and 6.5turns. In other words, if the machined threaded bore is outside thespecified range, the machined threaded bore may be considered defectivein view of the machining specifications.

If the machining specification calls for such a specific turn count, theabove noted examples may be able to determine if one boundary (underthreaded) of the range is met, but these conventional device are notable to determine if the other boundary (over threaded) of the range ismet.

Conventionally, when the specification calls for a specific turn countinto the bore, the inspection is carried out by a quality controltechnician, who manually counts the number of turns of the gauge tovalidate the thread length. However, this conventional counting methodpresents many issues.

With respect to quality assurance, since the counting is done manuallyby a quality control technician, the quality control technician maygenerate a false count if the quality control technician loses count orfocus during the procedure. This is especially true when monitoring alarge number of turns on a plurality of parts.

Moreover, due to the repetitive manual (turning) nature of theconventional counting technique, a quality control technician is moresusceptible to carpal tunnel syndrome.

Therefore, it is desirable to provide a process and/or device fordetermining if a specific turn count specification has been met, whichdoes not rely upon the manual counting of a quality control technician.

Moreover, it is desirable to provide an ergonomic process and/or devicefor determining if a specific turn count specification has been met,which is ergonomically designed to reduce the technician'ssusceptibility to carpal tunnel syndrome.

Furthermore, it is desirable to provide an ergonomic process and/ordevice for determining if a specific turn count specification has beenmet, which does not rely upon the manual counting of a quality controltechnician and is ergonomically designed to reduce the technician'ssusceptibility to carpal tunnel syndrome.

BRIEF DESCRIPTION OF THE DRAWINGS

The drawings are only for purposes of illustrating various embodimentsand are not to be construed as limiting, wherein:

FIG. 1 is a representation of a prior art tapered thread gauge andhandle;

FIG. 2 is a representation of a prior art reversible thread gauge andhandle;

FIG. 3 is a block diagram of a thread gauge inspection apparatus;

FIG. 4 is another block diagram of a thread gauge inspection apparatus;

FIG. 5 is a block diagram of a control system used in conjunction with athread gauge inspection apparatus;

FIG. 6 is an overall drawing of a thread gauge inspection apparatus;

FIG. 7 is a flowchart of the operations of a thread gauge inspectionapparatus;

FIG. 8 is another flowchart of the operations of a thread gaugeinspection apparatus;

FIG. 9 is a flowchart for tracking the quality of the reference threadgauge;

FIG. 10 is a block diagram of another embodiment of a thread gaugeinspection apparatus;

FIG. 11 is another block diagram of another embodiment of a thread gaugeinspection apparatus; and

FIG. 12 is a flowchart of the operations of another embodiment of athread gauge inspection apparatus.

DETAILED DESCRIPTION

For a general understanding, reference is made to the drawings. In thedrawings, like references have been used throughout to designateidentical or equivalent elements. It is also noted that the drawings maynot have been drawn to scale and that certain regions may have beenpurposely drawn disproportionately so that the features and conceptscould be properly illustrated.

In the following description a reference thread gauge refers to a ringgauge, a thread plug, or other reference (control) gauge device used totest or inspect the physical characteristics (quality) of a machinedthread.

For example, a ring gauge, as known to those skilled in the art, is,conventionally, a cylindrical ring, often steel, having an insidediameter finished to gauge tolerance and is used for checking theexternal diameter of a cylindrical threads. Typically, ring gauges comein pairs (Go and No-Go), wherein the Go ring gauge should rotate ontothe part (threaded stud), and the No-Go ring gauge should not rotateonto the part (threaded stud).

On other hand, a thread plug, as known to those skilled in the art,conventionally, is a plug (cylinder), often steel, having an outsidediameter finished to gauge tolerance and is used to inspect the insidediameter of a tapped hole with a Go, No-Go system. The Go portion of thethread plug should rotate into the part (threaded hole), and the No-Goportion of the thread plug should not rotate into the part (threadedhole).

It is noted that a machined thread may be created by a machine rotatinga threading device or a threading device being manually rotated by anoperator.

In FIG. 1, a conventional “Go” gauge 2 has a tapered shank whichcorresponds to a tapered bore within holder 4, which is also the samefor a conventional “No-Go” gauge 6 on the opposing end.

In FIG. 2, a handle 11 includes two collets, collet 9 for theconventional “Go” gauge 8 and collet 12 for a conventional “No-Go” gauge14. In this example, the gauge is threaded so as to be able to beflipped end for end when one end is worn out, effectively doubling theuseful life of the gauge.

As illustrated in FIGS. 1 and 2, the gauge is grasped and manuallyturned to inspect a threaded hole. Such a manual inspection process canproduced false results due to miscounts and makes the technician moresusceptible to carpal tunnel syndrome.

FIG. 3 illustrates a block diagram of a thread gauge inspectionapparatus 10. The thread gauge inspection apparatus 10 includes an inputdevice 20 which enables the inputting of a specific turn countcorresponding to inspection of a thread quality of a threaded hole or athreaded stud. The input device 20 may be a keypad, a set of buttons(one button corresponding to a ones unit value, a second buttoncorresponding to a tens unit value, and a third button corresponding toa hundreds unit value), a set of dials (one dial corresponding to a onesunit value, a second dial corresponding to a tens unit value, and athird dial corresponding to a hundreds unit value), etc. It is notedthat the input device receive the specific turn count optically,electrically, magnetically, manually, wirelessly.

An output device 30 communicates a result of the inspection of thethread quality of the threaded hole or the threaded stud. The outputdevice 30 may also communicate, in real-time, the actual number of turnsa reference thread gauge 90 is turned with respect to the threaded holeor threaded stud being inspected.

The output device 30 may be a LCD or LED display for displaying theresult of the inspection and/or the actual number of turns. Moreover,the output device 30 may be a set of lights for displaying the result ofthe inspection (a green light corresponding to a passing status, a redlight corresponding to a failing status, and/or yellow lightcorresponding to a need further consideration status).

The thread gauge inspection apparatus 10 includes a receiving member 80to hold the reference thread gauge 90. A rotation device (electricmotor) 60 bi-directionally rotates the reference thread gauge 90 throughthe receiving member 80 and a shaft 65. It is noted that rotation device(electric motor) 60 may be coupled directly to the receiving member 80,thereby eliminating the need for a shaft 65.

The rotation device (electric motor) 60 rotates the reference threadgauge 90 in a first direction to drive the reference thread gauge 90into a threaded hole being inspected or onto a threaded stud beinginspected.

The rotation device (electric motor) 60 rotates the reference threadgauge 90 in a second direction to drive the reference thread gauge 90out of a threaded hole being inspected or off of a threaded stud beinginspected.

The rotation device (electric motor) 60 may be a DC permanent magnetgear motor, which rotates the reference thread gauge 90 at a slow speed,such as, for example, 150 to 200 rpm, or other desired slow speed.

This type of motor has a torque constant expressed simply in terms ofoz-in/amp or N-m/amp at the motor shaft. The torque at the output of thegear box (which spins the reference thread gauge 90) can be determinedfrom current draw of the motor by simply reading the current, applyingthe torque constant, and multiplying by the reciprocal of the gearboxspeed reduction ratio.

The thread gauge inspection apparatus 10 also includes a counter 50 thatcounts a number of turns the reference thread gauge 90 is rotated by therotation device (electric motor) 60 in the first direction. The counter50 may be an optical encoder coupled to the shaft 65 or receiving member80.

The counter 50 may also be a mechanical encoder, an electrical encoder,or a magnetic encoder coupled to the shaft 65 or receiving member 80.

A torque monitoring device 70, operatively connected to the rotationdevice (electric motor) 60, monitors the torque produced by the rotationdevice (electric motor) 60 as the reference thread gauge 90 is rotatedby the rotation device (electric motor) 60 in the first direction.

Examples of conventional torque monitoring devices are described in U.S.Pat. No. 7,661,196 and U.S. Pat. No. 7,941,932. The entire contents ofU.S. Pat. No. 7,661,196 and U.S. Pat. No. 7,941,932 are herebyincorporated by reference.

Torque produced by the rotation device (electric motor) 60, as thereference thread gauge 90 is driven into a threaded hole being inspectedor onto a threaded stud being inspected, is monitored. The torque may bemonitored by monitoring the current drawn by the rotation device(electric motor) 60, which may be, for example, a DC permanent magnetgear motor. The current draw limit may be related to the predeterminedtorque limit by incorporating empirically determined gear boxparameters, such as gear box ratio, gear box friction factor, and anadditive factor in addition to the motor torque constant.

When a predetermined limit of torque is exceeded, the torque monitoringdevice 70 generates a signal indicating that the predetermined limit oftorque has been exceeded. This signal is outputted to a controller 40.

The controller 40 may be a processor, microprocessor, an applicationspecific integrated circuit, electronic circuitry, and/or combinationthereof. The controller 40, is not, as is well known by those skilled inthe art, purely software because software cannot by itself performfunctions, but can only perform functions in conjunction with hardware.

The controller 40, when the monitored torque exceeds the predeterminedlimit, causes the rotation device (electric motor) 60 to stop rotatingthe reference thread gauge 90 in the first direction.

The controller 40, when the monitored torque exceeds the predeterminedlimit, also causes the counter 50 to stop counting the number of turnsthe reference thread gauge 90 is rotated by the rotation device(electric motor) 60 in the first direction. The controller 40 comparesthe count produced by the counter 50 with the inputted specific turncount.

The output device 30 may indicate, when the count produced by thecounter 50 is equal to the inputted specific turn count, that the threadquality of the threaded hole or the threaded stud passed inspection.

The thread gauge inspection apparatus 10, when the count is less thanthe inputted specific turn count, may indicate that the thread qualityof the threaded hole or the threaded stud failed inspection.

The thread gauge inspection apparatus 10, when the count is greater thanthe inputted specific turn count, may indicate that the thread qualityof the threaded hole or the threaded stud failed inspection.

The thread gauge inspection apparatus 10, when the count is within apredetermined range, the predetermined range including the inputtedspecific turn count, may indicate that the thread quality of thethreaded hole or the threaded stud passed inspection.

The thread gauge inspection apparatus 10, when the count is outside apredetermined range, the predetermined range including the inputtedspecific turn count, may indicate that the thread quality of thethreaded hole or the threaded stud failed inspection.

The thread gauge inspection apparatus 10, when the count is less than alower boundary value of a predetermined range, the predetermined rangeincluding the inputted specific turn count, may indicate the threadquality of the threaded hole or the threaded stud failed inspection.

The thread gauge inspection apparatus 10, when the count is greater thanan upper boundary value of a predetermined range, the predeterminedrange including the inputted specific turn count, causes the outputdevice to indicate the thread quality of the threaded hole or thethreaded stud needs further consideration.

It is noted that that the thread gauge inspection apparatus 10 mayinclude a means to manually rotate the reference thread gauge 90. Inthis example, the torque monitoring device is not needed as thetechnician can feel the torque.

In the manually rotated device, the determination of the status of theinspection can be automatic by the controller 40, upon receiving asignal that the rotations have stopped or be manually by the technicianby comparing the displayed number of turns with a specified number ofturns.

FIGS. 4 and 5 illustrate a block diagram of a thread gauge inspectionsystem, wherein FIG. 4 illustrates a thread gauge inspection apparatus100 and FIG. 5 illustrates a thread gauge inspection control system 200.

The thread gauge inspection apparatus 100 of FIG. 4 includes a receivingmember 180 to hold the reference thread gauge 90. A rotation device(electric motor) 160 bi-directionally rotates the reference thread gauge90 through the receiving member 180 and a shaft 165. It is noted thatrotation device (electric motor) 160 may be coupled directly to thereceiving member 180, thereby eliminating the need for a shaft 165.

The rotation device (electric motor) 160 rotates the reference threadgauge 90 in a first direction to drive the reference thread gauge 90into a threaded hole being inspected or onto a threaded stud beinginspected.

The rotation device (electric motor) 160 rotates the reference threadgauge 90 in a second direction to drive the reference thread gauge 90out of a threaded hole being inspected or off of a threaded stud beinginspected.

The rotation device (electric motor) 160 may be a DC permanent magnetgear motor, which rotates the reference thread gauge 90 at a slow speed,such as, for example, 150 to 200 rpm, or other desired slow speed.

The thread gauge inspection apparatus 100 also includes a counter 150that counts a number of turns the reference thread gauge 90 is rotatedby the rotation device (electric motor) 160 in the first direction. Thecounter 150 may be an optical encoder coupled to the shaft 165 orreceiving member 180.

The counter 150 may also be a mechanical encoder, an electrical encoder,or a magnetic encoder coupled to the shaft 165 or receiving member 180.

A torque monitoring device 170, operatively connected to the rotationdevice (electric motor) 160, monitors the torque produced by therotation device (electric motor) 160 as the reference thread gauge 90 isrotated by the rotation device (electric motor) 160 in the firstdirection.

When a predetermined limit of torque is exceeded, the torque monitoringdevice 170 generates a signal indicating that the predetermined limit oftorque has been exceeded. This signal is outputted to a controller 140.

The controller 140 may be a processor, microprocessor, an applicationspecific integrated circuit, electronic circuitry, and/or combinationthereof. The controller 140, is not, as is well known by those skilledin the art, purely software because software cannot by itself performfunctions, but can only perform functions in conjunction with hardware.

The controller 140, when the monitored torque exceeds the predeterminedlimit, causes the rotation device (electric motor) 160 to stop rotatingthe reference thread gauge 90 in the first direction.

The controller 140, when the monitored torque exceeds the predeterminedlimit, also causes the counter 150 to stop counting the number of turnsthe reference thread gauge 90 is rotated by the rotation device(electric motor) 160 in the first direction. The controller 140 comparesthe count produced by the counter 150 with an inputted specific turncount.

The inputted specific turn count may be inputted through an input deviceas described with respect to FIG. 3, or the inputted specific turn countmay be inputted through a communication device 145. The communicationdevice 145 is in communication with communication device 245 of thethread gauge inspection control system 200 of FIG. 5. The communicationdevices 145 and 245 communicate over communication channel 300. Thus,the inputted specific turn count may be inputted through input device250 of FIG. 5 and communicated to the thread gauge inspection apparatus100.

Communication channel 300 may be a wired channel, a fiber channel, awireless channel, or an optical channel.

In another embodiment, the controller 140, when the monitored torqueexceeds the predetermined limit, causes the counter 150 to stop countingthe number of turns the reference thread gauge 90 is rotated by therotation device (electric motor) 160 in the first direction communicatesthe count produced by the counter 150 to the thread gauge inspectioncontrol system 200 of FIG. 5 for determining of inspection status.

The thread gauge inspection apparatus 100 may include an output device(not shown) to indicate, when the count produced by the counter 150 isequal to the inputted specific turn count, that the thread quality ofthe threaded hole or the threaded stud passed inspection. This outputdevice may perform all the functions described with respect to theoutput device 30 of FIG. 3.

The thread gauge inspection apparatus 100 may also include a gaugeidentification input device 125 to enable a technician to input theidentification of the reference thread gauge 90.

The gauge identification input device 125 may be a keypad for enteringthe numeric or alphanumeric identification of the reference thread gauge90.

The gauge identification input device 125 may also be a barcode readerfor reading a barcode containing the identification of the referencethread gauge 90. The barcode may be located on the reference threadgauge 90 or on a separate piece associated with the reference threadgauge 90.

The gauge identification input device 125 may be a magnetic or RFIDreader for acquiring the identification of the reference thread gauge90.

To identify the reference thread gauge 90, the reference thread gauge 90may include human-readable numeric and/or alphanumeric markings thereonfor the technician to read and enter into the system. The referencethread gauge 90 may include a barcode thereon to provide identification,a RFID to provide identification, a magnetic strip to provideidentification, and/or physical features (key), which can bemechanically detected to provide identification.

As illustrated in FIG. 5, a thread gauge inspection control system 200includes a control unit 240.

The control unit 240 may be a processor, microprocessor, an applicationspecific integrated circuit, electronic circuitry, and/or combinationthereof. The controller control unit 240, is not, as is well known bythose skilled in the art, purely software because software cannot byitself perform functions, but can only perform functions in conjunctionwith hardware.

The thread gauge inspection control system 200 also includes an inputdevice 250, which may be a keyboard, keypad, an electronic pointingdevice, a touch pad, a touchscreen, any other device and/or combinationthereof for enabling input of data to the control unit 240. The inputdevice 250 enables a technician to input a specified turn count to beutilized in the inspection process. The input device 250 may also enablea technician to input identification information relating to thereference thread gauge being used in the inspection process. Lastly, theinput device 250 may enable a technician or user input other informationor data relative to the inspection process to the thread gaugeinspection control system 200.

The thread gauge inspection control system 200 includes an output device250, which may be a display screen, a LED display, a LCD display, aprinter, or any other device for enabling the outputting of data fromthe control unit 240.

The thread gauge inspection control system 200 includes a memory 260,which stores data and/or application software for the thread gaugeinspection control system 200.

The thread gauge inspection control system 200 may also include a gaugeidentification input device 225 to enable a technician to input theidentification of the reference thread gauge 90.

The gauge identification input device 225 may be a keypad for enteringthe numeric or alphanumeric identification of the reference thread gauge90.

The gauge identification input device 225 may also be a barcode readerfor reading a barcode containing the identification of the referencethread gauge 90. The barcode may be located on the reference threadgauge 90 or on a separate piece associated with the reference threadgauge 90.

The gauge identification input device 225 may be a magnetic or RFIDreader for acquiring the identification of the reference thread gauge90.

To identify the reference thread gauge 90, the reference thread gauge 90may include human-readable numeric and/or alphanumeric markings thereonfor the technician to read and enter into the system. The referencethread gauge 90 may include a barcode thereon to provide identification,a RFID to provide identification, a magnetic strip to provideidentification, and/or physical features (key), which can bemechanically detected to provide identification.

FIG. 6 illustrates a general view of a thread gauge inspection apparatus1000. As illustrated in FIG. 6, reference thread gauge 1900 is removablycoupled to chuck 1800 using a chuck key (not shown) to secure a shank ofthe reference thread gauge 1900 to a motorized driver (not shown).

An ON/OFF switch 1050 provides user manual control of starting andstopping the inspection process

As noted above, the ability to attain the specified rotations of thereference thread gauge 1900 into a threaded bore is predicated on thequality and depth of the threads. In the case of a non-conformingthread, the torque required to turn the reference thread gauge 1900exceeds the predetermined torque limit, and the rotation of thereference thread gauge 1900 is stopped.

As illustrated in FIG. 6, thread gauge inspection apparatus 1000includes switches or buttons 1300, which serve to input the number ofturns that must at least be accomplished for the test to be successful.A one's unit switch/button, a ten's unit switch/button, and hundred'sswitch/button, used in combination, allows a technician to input aspecified revolution count to be utilized in the inspection process.

It is noted that the switches or buttons 1300 can have a dual operationsuch as a reset, clear and the like.

The thread gauge inspection apparatus 1000 may include a display 1350 isa visual output device which communicates the required (specified) turns(or the real time turn count when in use).

Display 1350 may display other information/data such as; remainingbattery charge, motor torque, reference thread gauge ID, revolutiondirection, job number, number of tests run, date/time and any otherinformation of potential interest to the operator, as well as qualityassurance management.

The thread gauge inspection apparatus 1000 may also include a series oflights (displays) 1200, which convey the status of the inspection (agreen light corresponding to a passing status, a red light correspondingto a failing status, and/or yellow light corresponding to a need furtherconsideration status).

The thread gauge inspection apparatus 1000 may also include (not shown)a power source, which may be an internal rechargeable battery or powerprovide through an external wire.

It is noted that the integrated battery may be a removable battery packto allow for the interchange of power packs while one is recharging.

The thread gauge inspection apparatus 1000 may also include (not shown)a power interface to allow the thread gauge inspection apparatus 1000 tobe placed into a charging station when not in use.

FIG. 7 illustrates a flowchart showing a thread gauge inspectionprocess. As illustrated in FIG. 7, a reference thread gauge beginsrotating at step S10, the process of counting the number of turns thatthe reference thread gauge makes is started at step S10.

The rotating of reference thread gauge and the count process continuesuntil step S20 determines (NO branch) that the torque on the referencethread gauge exceeds a predetermined limit.

As previously noted, the monitoring of the torque on a reference threadgauge is well known to those skilled in the art.

If step S20 determines (YES branch) that the torque on the referencethread gauge exceeds a predetermined limit, the rotating of referencethread gauge and the count process are stopped at step S30.

At step S40, the count generated by the count process is compared with aspecified count. The specified count can be inputted into the processbefore the inspection process is started. The specified count is thevalue used to determine the inspection status of the threads under test.

Optionally, at step S35, the rotation of the reference thread gauge canbe reversed to disengage the reference thread gauge from the threadunder test.

At step S50, it is determined if the count generated by the countprocess is within a predetermined range of the specified count.

If the count generated by the count process is within a predeterminedrange of the specified count (YES branch), step S70 indicates that thethread under test passes inspection.

If the count generated by the count process is not within apredetermined range of the specified count (No branch), step S60indicates that the thread under test failed inspection.

FIG. 8 illustrates another flowchart showing an alternative inspectionstatus determination. As illustrated in FIG. 8, at step S40, the countgenerated by the count process is compared with a specified count.

At step S50, it is determined if the count generated by the countprocess is within a predetermined range of the specified count.

If the count generated by the count process is within a predeterminedrange of the specified count (YES branch), step S70 indicates that thethread under test passes inspection.

If the count generated by the count process is not within apredetermined range of the specified count (No branch), step S55determines if the count generated by the count process is below (lessthan) the predetermined range of the specified count.

If the count generated by the count process is below (less than) thepredetermined range of the specified count (YES branch), step S60indicates that the thread under test failed inspection.

If the count generated by the count process is not below (greater than)the predetermined range of the specified count (YES branch), step S65indicates that the thread under test needs further consideration.

With respect to the range discussed above, an inspection process mayconsider a thread as passing inspection if the count value is +/−0.5turns of the specified turn count.

Thus, if the specified turn count is 6 turns, a count between 5.5 and6.5 turns would trigger a pass inspection status, as illustrated in FIG.8. However, in this example, a turn count of 5 would trigger a failedinspection status, as illustrated in FIG. 8.

In certain situations, a count less than the lower boundary of thespecified count range is unacceptable, but a count greater than an upperboundary of the specified count range may be acceptable after furtherconsideration or inspection, as illustrated in FIG. 8.

FIG. 9 illustrates a flowchart for checking if the reference threadgauge can be utilized in the inspection process. As is known to thoseskilled in the art, reference thread gauges need to be periodicallyrecalibrated due to wear from the inspection process. The process ofFIG. 9 provides the monitoring of the usage of a reference thread gaugeand determination if the reference thread gauge is needs calibrationbefore use.

As illustrated in FIG. 9, at step S100, the identification of thereference thread gauge is received. The identification information isused to retrieve usage information from a database to determine, at stepS120, if the usage amount for the identified reference thread gauge isbelow a predetermined usage limit, the predetermined usage limitcorresponding to the upper usage amount before a reference thread gaugeneeds to be recalibrated.

If the identified reference thread gauge is below the predeterminedusage limit (NO branch), step S140 generates a signal indicating thatthe identified reference thread gauge is usable.

This signal can be used to inform the technician of the status of theidentified reference thread gauge or the signal can be used to enablethe operation of a thread gauge inspection apparatus in conjunction withthe identified reference thread gauge.

If the identified reference thread gauge is at or above thepredetermined usage limit (YES branch), step S130 generates a signalindicating that the identified reference thread gauge is not usable.

This signal can be used to inform the technician of the status of theidentified reference thread gauge or the signal can be used to disablethe operation of a thread gauge inspection apparatus in conjunction withthe identified reference thread gauge (step S135).

If the identified reference thread gauge is utilized in an inspectionprocess, its usage tracked and recorded, at step S150. The usage amountmay be conveyed back to a control system for entering into a databasewhich identifies a reference thread gauge usage amount betweencalibrations.

By monitoring the identification of the reference thread gauge and itsusage, a system can maintain appropriate quality control with respect toutilizing calibrated reference thread gauges and preventing the use ofun-calibrated reference thread gauges.

FIG. 10 illustrates a block diagram of another embodiment of a threadgauge inspection apparatus 10. The thread gauge inspection apparatus 10includes an input device 20 which enables the inputting of a specificturn count corresponding to inspection of a thread quality of a threadedhole or a threaded stud.

The input device 20 may be a keypad, a set of buttons (one buttoncorresponding to a ones unit value, a second button corresponding to atens unit value, and a third button corresponding to a hundreds unitvalue), a set of dials (one dial corresponding to a ones unit value, asecond dial corresponding to a tens unit value, and a third dialcorresponding to a hundreds unit value), etc. It is noted that the inputdevice receive the specific turn count optically, electrically,magnetically, manually, wirelessly.

An output device 30 communicates a result of the inspection of thethread quality of the threaded hole or the threaded stud. The outputdevice 30 may also communicate, in real-time, the actual number of turnsa reference thread gauge 90 is turned with respect to the threaded holeor threaded stud being inspected. The output device 30 may be a LCD orLED display for displaying the result of the inspection and/or theactual number of turns. Moreover, the output device 30 may be a set oflights for displaying the result of the inspection (a green lightcorresponding to a passing status, a red light corresponding to afailing status, and/or yellow light corresponding to a need furtherconsideration status).

The thread gauge inspection apparatus 10 includes a receiving member 80to hold the reference thread gauge 90. A rotation device (electricmotor) 60 bi-directionally rotates the reference thread gauge 90 throughthe receiving member 80 and a shaft/ratchet 85.

The rotation device (electric motor) 60 rotates the reference threadgauge 90 in a first direction to drive the reference thread gauge 90into a threaded hole being inspected or onto a threaded stud beinginspected.

The rotation device (electric motor) 60 rotates the reference threadgauge 90 in a second direction to drive the reference thread gauge 90out of a threaded hole being inspected or off of a threaded stud beinginspected.

The rotation device (electric motor) 60 may be a DC permanent magnetgear motor, which rotates the reference thread gauge 90 at a slow speed,such as, for example, 150 to 200 rpm, or other desired slow speed.

This type of motor has a torque constant expressed simply in terms ofoz-in/amp or N-m/amp at the motor shaft. The torque at the output of thegear box (which spins the reference thread gauge 90) can be determinedfrom current draw of the motor by simply reading the current, applyingthe torque constant, and multiplying by the reciprocal of the gearboxspeed reduction ratio.

The thread gauge inspection apparatus 10 also includes a counter 50 thatcounts a number of turns the reference thread gauge 90 is rotated by therotation device (electric motor) 60 in the first direction. The counter50 may be an optical encoder coupled to the shaft/ratchet 85 orreceiving member 80.

The counter 50 may also be a mechanical encoder, an electrical encoder,or a magnetic encoder coupled to the shaft/ratchet 85 or receivingmember 80.

A ratchet monitoring device 87, operatively connected to theshaft/ratchet 85, monitors the ratcheting of the shaft/ratchet 85 as thereference thread gauge 90 is rotated by the rotation device (electricmotor) 60 in the first direction.

When a predetermined limit of torque is exceeded, the shaft/ratchet 85will begin to ratchet in that the rotation device (electric motor) 60may continue to turn but the receiving member 80 or the reference threadgauge 90 will no longer turn. Upon sensing the ratcheting, the ratchetmonitoring device 87 generates a signal indicating that thepredetermined limit of torque has been exceeded. This signal isoutputted to a controller 40.

The controller 40 may be a processor, microprocessor, an applicationspecific integrated circuit, electronic circuitry, and/or combinationthereof. The controller 40, is not, as is well known by those skilled inthe art, purely software because software cannot by itself performfunctions, but can only perform functions in conjunction with hardware.

The controller 40, when the monitored torque exceeds the predeterminedlimit, causes the rotation device (electric motor) 60 to stop rotatingthe reference thread gauge 90 in the first direction.

The controller 40, when the monitored torque exceeds the predeterminedlimit, also causes the counter 50 to stop counting the number of turnsthe reference thread gauge 90 is rotated by the rotation device(electric motor) 60 in the first direction. The controller 40 comparesthe count produced by the counter 50 with the inputted specific turncount.

The output device 30 may indicate, when the count produced by thecounter 50 is equal to the inputted specific turn count, that the threadquality of the threaded hole or the threaded stud passed inspection.

The thread gauge inspection apparatus 10, when the count is less thanthe inputted specific turn count, may indicate that the thread qualityof the threaded hole or the threaded stud failed inspection.

The thread gauge inspection apparatus 10, when the count is greater thanthe inputted specific turn count, may indicate that the thread qualityof the threaded hole or the threaded stud failed inspection.

The thread gauge inspection apparatus 10, when the count is within apredetermined range, the predetermined range including the inputtedspecific turn count, may indicate that the thread quality of thethreaded hole or the threaded stud passed inspection.

The thread gauge inspection apparatus 10, when the count is outside apredetermined range, the predetermined range including the inputtedspecific turn count, may indicate that the thread quality of thethreaded hole or the threaded stud failed inspection.

The thread gauge inspection apparatus 10, when the count is less than alower boundary value of a predetermined range, the predetermined rangeincluding the inputted specific turn count, may indicate the threadquality of the threaded hole or the threaded stud failed inspection.

The thread gauge inspection apparatus 10, when the count is greater thanan upper boundary value of a predetermined range, the predeterminedrange including the inputted specific turn count, causes the outputdevice to indicate the thread quality of the threaded hole or thethreaded stud needs further consideration.

It is noted that that the thread gauge inspection apparatus 10 mayinclude a means to manually rotate the reference thread gauge 90. Inthis example, the torque monitoring device is not needed as thetechnician can feel the torque.

In the manually rotated device, the determination of the status of theinspection can be automatic by the controller 40, upon receiving asignal that the rotations have stopped or be manually by the technicianby comparing the displayed number of turns with a specified number ofturns.

FIG. 11 illustrates another embodiment of a thread gauge inspectionapparatus 100.

The thread gauge inspection apparatus 100 of FIG. 11 includes areceiving member 180 to hold the reference thread gauge 90. A rotationdevice (electric motor) 160 bi-directionally rotates the referencethread gauge 90 through the receiving member 180 and a shaft/ratchet185.

The rotation device (electric motor) 160 rotates the reference threadgauge 90 in a first direction to drive the reference thread gauge 90into a threaded hole being inspected or onto a threaded stud beinginspected.

The rotation device (electric motor) 160 rotates the reference threadgauge 90 in a second direction to drive the reference thread gauge 90out of a threaded hole being inspected or off of a threaded stud beinginspected.

The rotation device (electric motor) 160 may be a DC permanent magnetgear motor, which rotates the reference thread gauge 90 at a slow speed,such as, for example, 150 to 200 rpm, or other desired slow speed.

The thread gauge inspection apparatus 100 also includes a counter 150that counts a number of turns the reference thread gauge 90 is rotatedby the rotation device (electric motor) 160 in the first direction. Thecounter 150 may be an optical encoder coupled to the shaft/ratchet 185or receiving member 180.

The counter 150 may also be a mechanical encoder, an electrical encoder,or a magnetic encoder coupled to the shaft/ratchet 185 or receivingmember 180.

A ratchet monitoring device 187, operatively connected to theshaft/ratchet 185, monitors the ratcheting of the shaft/ratchet 185 asthe reference thread gauge 90 is rotated by the rotation device(electric motor) 160 in the first direction.

When a predetermined limit of torque is exceeded, the shaft/ratchet 185will begin to ratchet in that the rotation device (electric motor) 160may continue to turn but the receiving member 180 or the referencethread gauge 90 will no longer turn. Upon sensing the ratcheting, theratchet monitoring device 187 generates a signal indicating that thepredetermined limit of torque has been exceeded. This signal isoutputted to a controller 140.

The controller 140 may be a processor, microprocessor, an applicationspecific integrated circuit, electronic circuitry, and/or combinationthereof. The controller 140, is not, as is well known by those skilledin the art, purely software because software cannot by itself performfunctions, but can only perform functions in conjunction with hardware.

The controller 140, when the monitored torque exceeds the predeterminedlimit, causes the rotation device (electric motor) 160 to stop rotatingthe reference thread gauge 90 in the first direction.

The controller 140, when the monitored torque exceeds the predeterminedlimit, also causes the counter 150 to stop counting the number of turnsthe reference thread gauge 90 is rotated by the rotation device(electric motor) 160 in the first direction. The controller 140 comparesthe count produced by the counter 150 with an inputted specific turncount.

The inputted specific turn count may be inputted through an input deviceas described with respect to FIG. 3 or 10, or the inputted specific turncount may be inputted through a communication device 145. Thecommunication device 145 is in communication with communication device245 of the thread gauge inspection control system 200 of FIG. 5. Thecommunication devices 145 and 245 communicate over communication channel300. Thus, the inputted specific turn count may be inputted throughinput device 250 of FIG. 5 and communicated to the thread gaugeinspection apparatus 100.

Communication channel 300 may be a wired channel, a fiber channel, awireless channel, or an optical channel.

In another embodiment, the controller 140, when the monitored torqueexceeds the predetermined limit, causes the counter 150 to stop countingthe number of turns the reference thread gauge 90 is rotated by therotation device (electric motor) 160 in the first direction communicatesthe count produced by the counter 150 to the thread gauge inspectioncontrol system 200 of FIG. 5 for determining of inspection status.

The thread gauge inspection apparatus 100 may include an output device(not shown) to indicate, when the count produced by the counter 150 isequal to the inputted specific turn count, that the thread quality ofthe threaded hole or the threaded stud passed inspection. This outputdevice may perform all the functions described with respect to theoutput device 30 of FIG. 3 or 10.

The thread gauge inspection apparatus 100 may also include a gaugeidentification input device 125 to enable a technician to input theidentification of the reference thread gauge 90.

The gauge identification input device 125 may be a keypad for enteringthe numeric or alphanumeric identification of the reference thread gauge90.

The gauge identification input device 125 may also be a barcode readerfor reading a barcode containing the identification of the referencethread gauge 90. The barcode may be located on the reference threadgauge 90 or on a separate piece associated with the reference threadgauge 90.

The gauge identification input device 125 may be a magnetic or RFIDreader for acquiring the identification of the reference thread gauge90.

To identify the reference thread gauge 90, the reference thread gauge 90may include human-readable numeric and/or alphanumeric markings thereonfor the technician to read and enter into the system. The referencethread gauge 90 may include a barcode thereon to provide identification,a RFID to provide identification, a magnetic strip to provideidentification, and/or physical features (key), which can bemechanically detected to provide identification.

FIG. 12 illustrates a flowchart showing another embodiment of a threadgauge inspection process. As illustrated in FIG. 12, a reference threadgauge begins rotating at step S10, the process of counting the number ofturns that the reference thread gauge makes is started at step S10. Therotating of reference thread gauge and the count process continues untilstep S120 determines (NO branch) that the torque on the reference threadgauge exceeds a predetermined limit, by sensing ratcheting in thedriving of the reference thread gauge.

If step S120 determines (YES branch) that the torque on the referencethread gauge exceeds a predetermined limit, the rotating of referencethread gauge and the count process are stopped at step S30.

At step S40, the count generated by the count process is compared with aspecified count. The specified count can be inputted into the processbefore the inspection process is started. The specified count is thevalue used to determine the inspection status of the threads under test.

Optionally, at step S35, the rotation of the reference thread gauge canbe reversed to disengage the reference thread gauge from the threadunder test.

At step S50, it is determined if the count generated by the countprocess is within a predetermined range of the specified count.

If the count generated by the count process is within a predeterminedrange of the specified count (YES branch), step S70 indicates that thethread under test passes inspection.

If the count generated by the count process is not within apredetermined range of the specified count (No branch), step S60indicates that the thread under test failed inspection.

As described above, a thread gauge inspection apparatus may include aninput device to enable inputting of a specific turn count correspondingto inspection of a thread quality of a threaded hole or a threaded stud;an output device to communicate a result of the inspection of the threadquality of the threaded hole or the threaded stud; a receiving member tohold a reference thread gauge; a rotation device to bi-directionallyrotate the reference thread gauge, the rotation device rotating thereference thread gauge in a first direction to drive the referencethread gauge into the threaded hole being inspected or onto the threadedstud being inspected; a counting device to count a number of turns thereference thread gauge is rotated by the rotation device in the firstdirection; a torque monitoring device to monitor the torque produced bythe rotation device as the reference thread gauge is rotated by therotation device in the first direction; and a controller operativelyconnected to the user input device, the rotation device, the countingdevice, and the torque monitoring device.

The controller, when the monitored torque exceeds a predetermined value,may cause the rotation device to stop rotating the reference threadgauge in the first direction.

The controller, when the monitored torque exceeds the predeterminedvalue, may cause the counting device to stop counting the number ofturns the reference thread gauge is rotated by the rotation device inthe first direction.

The controller, when the monitored torque exceeds the predeterminedvalue, may compare the count produced by the counting device with theinputted specific turn count.

The controller, when the count produced by the counting device is equalto the inputted specific turn count, may cause the output device toindicate the thread quality of the threaded hole or the threaded studpassed inspection.

The controller, when the count produced by the counting device is lessthan the inputted specific turn count, may cause the output device toindicate the thread quality of the threaded hole or the threaded studfailed inspection.

The controller, when the count produced by the counting device isgreater than the inputted specific turn count, may cause the outputdevice to indicate the thread quality of the threaded hole or thethreaded stud failed inspection.

The controller, when the count produced by the counting device is withina predetermined range, the predetermined range including the inputtedspecific turn count, may cause the output device to indicate the threadquality of the threaded hole or the threaded stud passed inspection.

The controller, when the count produced by the counting device isoutside a predetermined range, the predetermined range including theinputted specific turn count, may cause the output device to indicatethe thread quality of the threaded hole or the threaded stud failedinspection.

The controller, when the count produced by the counting device is lessthan a lower boundary value of a predetermined range, the predeterminedrange including the inputted specific turn count, may cause the outputdevice to indicate the thread quality of the threaded hole or thethreaded stud failed inspection.

The controller, when the count produced by the counting device isgreater than an upper boundary value of a predetermined range, thepredetermined range including the inputted specific turn count, maycause the output device to indicate the thread quality of the threadedhole or the threaded stud needs further consideration.

The counting device may be an optical encoder, a mechanical encoder, anelectrical encoder, or a magnetic encoder.

The output device may display, in real-time, the number of turns thereference thread gauge has been rotated by the rotation device in thefirst direction.

The controller, when the monitored torque exceeds a predetermined value,may cause the rotation device to stop rotating the reference threadgauge in the first direction and to rotate the reference thread gauge ina second direction to drive the reference thread gauge out of thethreaded hole being inspected or off of the threaded stud beinginspected.

A thread gauge inspection apparatus may include a receiving member tohold a reference thread gauge; a rotation device to bi-directionallyrotate the reference thread gauge, the rotation device rotating thereference thread gauge in a first direction to drive the referencethread gauge into the threaded hole being inspected or onto the threadedstud being inspected; a counting device to count a number of turns thereference thread gauge is rotated by the rotation device in the firstdirection; and an output device to communicate, in real-time, the numberof turns the reference thread gauge has been rotated by the rotationdevice in the first direction.

The thread gauge inspection apparatus may further include a torquemonitoring device to monitor the torque produced by the rotation deviceas the reference thread gauge is rotated by the rotation device in thefirst direction; and a controller operatively connected to the rotationdevice and the torque monitoring device, the controller, when themonitored torque exceeds a predetermined value, causing the rotationdevice to stop rotating the reference thread gauge in the firstdirection.

The counting device may be an optical encoder, a mechanical encoder, anelectrical encoder, or a magnetic encoder.

The controller, when the monitored torque exceeds a predetermined value,may cause the rotation device to stop rotating the reference threadgauge in the first direction and to rotate the reference thread gauge ina second direction to drive the reference thread gauge out of thethreaded hole being inspected or off of the threaded stud beinginspected.

A thread gauge inspection system may include a reference thread gaugehaving unique identification; a thread gauge inspection apparatus havinga receiving member to hold the reference thread gauge, the thread gaugeinspection apparatus acquiring the unique identification from thereference thread gauge; and a control system in operative communicationwith the thread gauge inspection apparatus.

The thread gauge inspection apparatus communicates the acquired uniqueidentification from the reference thread gauge to the control system.

The control system determines the status of the identified referencethread gauge, the status of the identified reference thread gauge beingeither approved for inspecting the thread quality of a threaded hole ora threaded stud or not approved for inspecting the thread quality of thethreaded hole or the threaded stud.

The control system communicates the determined status of the identifiedreference thread gauge to the thread gauge inspection apparatus.

The thread gauge inspection apparatus may include an input device toenable inputting the unique identification of the reference threadgauge.

The unique identification of the reference thread gauge may be machinereadable.

The thread gauge inspection apparatus may include an input device toenable reading of the unique identification of the reference threadgauge.

The thread gauge inspection apparatus may enter into an inoperativestate when the receiving member holds the identified reference threadgauge and the control system communicates the determined status of theidentified reference thread gauge is not approved for inspecting thethread quality of the threaded hole or the threaded stud.

The thread gauge inspection apparatus displays that the determinedstatus of the identified reference thread gauge may not be approved forinspecting the thread quality of the threaded hole or the threaded studwhen the control system communicates the determined status of theidentified reference thread gauge is not approved for inspecting thethread quality of the threaded hole or the threaded stud.

The thread gauge inspection apparatus may include a controller, whereinthe controller tracks a usage amount the identified reference threadgauge is used during an inspection process. The thread gauge inspectionapparatus communicates the tracked usage amount of the identifiedreference thread gauge to the control system. The control systemprocesses the communicated the tracked usage amount to maintain a usagehistory of the identified reference thread gauge and determines thestatus of the identified reference thread gauge based upon themaintained usage history of the identified reference thread gauge.

The thread gauge inspection apparatus may include a rotation device tobi-directionally rotate the identified reference thread gauge, therotation device rotating the identified reference thread gauge in afirst direction to drive the identified reference thread gauge into thethreaded hole being inspected or onto the threaded stud being inspected.

The thread gauge inspection apparatus may include a counting device tocount a number of turns the identified reference thread gauge is rotatedby the rotation device in the first direction, the count being thetracked usage amount that the thread gauge inspection apparatuscommunicates to the control system.

A thread gauge inspection system may include a reference thread gauge; athread gauge inspection apparatus having a receiving member to hold thereference thread gauge; and a control system in operative communicationwith the thread gauge inspection apparatus.

The thread gauge inspection apparatus may include an input device toenable inputting of a specific turn count corresponding to inspection ofa thread quality of a threaded hole or a threaded stud, an output deviceto communicate a result of the inspection of the thread quality of thethreaded hole or the threaded stud, a receiving member to hold areference thread gauge, a rotation device to bi-directionally rotate thereference thread gauge, the rotation device rotating the referencethread gauge in a first direction to drive the reference thread gaugeinto the threaded hole being inspected or onto the threaded stud beinginspected, a counting device to count a number of turns the referencethread gauge is rotated by the rotation device in the first direction, atorque monitoring device to monitor the torque produced by the rotationdevice as the reference thread gauge is rotated by the rotation devicein the first direction, and a controller operatively connected to theuser input device, the rotation device, the counting device, and thetorque monitoring device.

The controller, when the monitored torque exceeds a predetermined value,causes the rotation device to stop rotating the reference thread gaugein the first direction. The controller, when the monitored torqueexceeds the predetermined value, causes the counting device to stopcounting the number of turns the reference thread gauge is rotated bythe rotation device in the first direction.

The controller, when the monitored torque exceeds the predeterminedvalue, compares the count produced by the counting device with theinputted specific turn count. The controller, when the count produced bythe counting device is equal to the inputted specific turn count, causesthe output device to indicate the thread quality of the threaded hole orthe threaded stud passed inspection.

The thread gauge inspection apparatus communicates to the controlsystem, when the count produced by the counting device is equal to theinputted specific turn count, information indicating that the threadquality of the threaded hole or the threaded stud passed inspection.

The control system stores the information received from the thread gaugeinspection apparatus.

The controller, when the count produced by the counting device is lessthan the inputted specific turn count, may cause the output device toindicate the thread quality of the threaded hole or the threaded studfailed inspection

The thread gauge inspection apparatus may communicate to the controlsystem, when the count produced by the counting device is less than theinputted specific turn count, information indicating that the threadquality of the threaded hole or the threaded stud failed inspection.

The controller, when the count produced by the counting device isgreater than the inputted specific turn count, may cause the outputdevice to indicate the thread quality of the threaded hole or thethreaded stud failed inspection.

The thread gauge inspection apparatus communicates to the controlsystem, when the count produced by the counting device is greater thanthe inputted specific turn count, information indicating that the threadquality of the threaded hole or the threaded stud failed inspection.

The controller, when the count produced by the counting device is withina predetermined range, the predetermined range including the inputtedspecific turn count, may cause the output device to indicate the threadquality of the threaded hole or the threaded stud passed inspection.

The thread gauge inspection apparatus communicates to the controlsystem, when the count produced by the counting device is within apredetermined range, the predetermined range including the inputtedspecific turn count, information indicating that the thread quality ofthe threaded hole or the threaded stud passed inspection.

The controller, when the count produced by the counting device isoutside a predetermined range, the predetermined range including theinputted specific turn count, may cause the output device to indicatethe thread quality of the threaded hole or the threaded stud failedinspection.

The thread gauge inspection apparatus communicates to the controlsystem, when the count produced by the counting device is outside apredetermined range, the predetermined range including the inputtedspecific turn count, information indicating that the thread quality ofthe threaded hole or the threaded stud failed inspection.

The controller, when the count produced by the counting device is lessthan a lower boundary value of a predetermined range, the predeterminedrange including the inputted specific turn count, may cause the outputdevice to indicate the thread quality of the threaded hole or thethreaded stud failed inspection.

The thread gauge inspection apparatus communicates to the controlsystem, when the count produced by the counting device is less than alower boundary value of a predetermined range, the predetermined rangeincluding the inputted specific turn count, information indicating thatthe thread quality of the threaded hole or the threaded stud failedinspection.

The reference thread gauge may have unique identification. The threadgauge inspection apparatus acquires the unique identification from thereference thread gauge and communicates the acquired uniqueidentification from the reference thread gauge to the control system.The control system determines the status of the identified referencethread gauge, the status of the identified reference thread gauge beingeither approved for inspecting the thread quality of a threaded hole ora threaded stud or not approved for inspecting the thread quality of thethreaded hole or the threaded stud. The control system communicates thedetermined status of the identified reference thread gauge to the threadgauge inspection apparatus.

The thread gauge inspection apparatus may include an input device toenable inputting the unique identification of the reference threadgauge.

The unique identification of the reference thread gauge may be machinereadable.

The thread gauge inspection apparatus may include an input device toenable reading of the unique identification of the reference threadgauge.

The thread gauge inspection apparatus may enter into an inoperativestate when the receiving member holds the identified reference threadgauge and the control system communicates the determined status of theidentified reference thread gauge is not approved for inspecting thethread quality of the threaded hole or the threaded stud.

The thread gauge inspection apparatus may display that the determinedstatus of the identified reference thread gauge is not approved forinspecting the thread quality of the threaded hole or the threaded studwhen the control system communicates the determined status of theidentified reference thread gauge is not approved for inspecting thethread quality of the threaded hole or the threaded stud.

The thread gauge inspection apparatus may include a controller. Thecontroller tracks a usage amount the identified reference thread gaugeis used during an inspection process. The thread gauge inspectionapparatus communicates the tracked usage amount of the identifiedreference thread gauge to the control system. The control systemprocesses the communicated the tracked usage amount to maintain a usagehistory of the identified reference thread gauge. The control systemdetermines the status of the identified reference thread gauge basedupon the maintained usage history of the identified reference threadgauge.

The thread gauge inspection apparatus may include a rotation device tobi-directionally rotate the identified reference thread gauge, therotation device rotating the identified reference thread gauge in afirst direction to drive the identified reference thread gauge into thethreaded hole being inspected or onto the threaded stud being inspected.

A thread gauge inspection apparatus may include a rotation device tobi-directionally rotate a reference thread gauge, the rotation devicerotating the reference thread gauge in a first direction; a countingdevice to count a number of turns the reference thread gauge is rotatedby the rotation device; and an output device to communicate the countednumber of turns the reference thread gauge is rotated by the rotationdevice as a result of an inspection of a thread quality of a machinedthread.

The counting device may count a number of turns the reference threadgauge is rotated by the rotation device in the first direction, thefirst direction being a clockwise direction.

The counting device may count a number of turns the reference threadgauge is rotated by the rotation device in a second direction, thesecond direction being a counter-clockwise direction.

The thread gauge inspection apparatus may include a torque monitoringdevice to monitor the torque produced by the rotation device as thereference thread gauge is rotated by the rotation device in the firstdirection, the torque monitoring device causing the rotation device tostop rotating the reference thread gauge in the first direction when themonitored torque exceeds a predetermined value.

The thread gauge inspection apparatus may include a torque monitoringdevice to monitor the torque produced by the rotation device as thereference thread gauge is rotated by the rotation device in the firstdirection; and a clutch mechanism operatively connected between therotation device and the reference thread gauge, the torque monitoringdevice causing the clutch mechanism to disengage the reference threadgauge from the rotation device when the monitored torque exceeds apredetermined value.

The thread gauge inspection apparatus may include a ratcheting mechanismto cause the reference thread gauge to stop rotating in the firstdirection when a torque produced by the rotation device exceeds apredetermined value.

The counting device may be an optical encoder, a mechanical encoder, anelectrical encoder, and/or a magnetic encoder.

The output device may display, in real-time, the number of turns thereference thread gauge has been rotated by the rotation device in thefirst direction.

The output device may display, in real-time, the number of turns thereference thread gauge has been rotated by the rotation device in thesecond direction.

The torque monitoring device, when the monitored torque exceeds apredetermined value, may cause the rotation device to stop rotating thereference thread gauge in the first direction and to rotate thereference thread gauge in a second direction.

The thread gauge inspection apparatus may include a receiving member tohold the reference thread gauge, the receiving member being operativelycoupled to the rotation device.

The thread gauge inspection apparatus may include a receiving member tohold the reference thread gauge, the receiving member being operativelycoupled to the clutch mechanism.

The thread gauge inspection apparatus may include a receiving member tohold the reference thread gauge, the receiving member being operativelycoupled to the ratcheting mechanism.

The output device may visually indicate that the rotation device hasstopped rotating the reference thread gauge in the first direction.

The output device may visually indicate that the ratcheting mechanismhas caused the reference thread gauge to stop rotating.

The output device may audibly indicate that the rotation device hasstopped rotating the reference thread gauge in the first direction.

The output device may audibly indicate that the ratcheting mechanism hascaused the reference thread gauge to stop rotating.

A thread gauge inspection apparatus may include an input device toenable inputting of a specific turn count corresponding to inspection ofa thread quality of a machined thread; an output device to communicate aresult of the inspection of the thread quality of the machined thread; arotation device to bi-directionally rotate the reference thread gauge,the rotation device rotating the reference thread gauge in a firstdirection; a counting device to count a number of turns the referencethread gauge is rotated by the rotation device; a torque monitoringdevice to monitor the torque produced by the rotation device as thereference thread gauge is rotated by the rotation device in the firstdirection; and a controller operatively connected to the input device,the rotation device, the counting device, and the torque monitoringdevice. The controller, when the monitored torque exceeds apredetermined value, causes the rotation device to stop rotating thereference thread gauge in the first direction. The controller comparesthe count produced by the counting device with the inputted specificturn count. The controller, when the count produced by the countingdevice is equal to the inputted specific turn count, causes the outputdevice to indicate the thread quality of the machined thread passedinspection.

The controller, when the count produced by the counting device is lessthan the inputted specific turn count, may cause the output device toindicate the thread quality of the machined thread failed inspection.

The controller, when the count produced by the counting device isgreater than the inputted specific turn count, may cause the outputdevice to indicate the thread quality of the machined thread failedinspection.

The controller, when the count produced by the counting device is withina predetermined range, the predetermined range including the inputtedspecific turn count, may cause the output device to indicate the threadquality of the machined thread passed inspection.

The controller, when the count produced by the counting device isoutside a predetermined range, the predetermined range including theinputted specific turn count, may cause the output device to indicatethe thread quality of the machined thread failed inspection.

The controller, when the count produced by the counting device is lessthan a lower boundary value of a predetermined range, the predeterminedrange including the inputted specific turn count, may cause the outputdevice to indicate the thread quality of the machined thread failedinspection.

The controller, when the count produced by the counting device isgreater than an upper boundary value of a predetermined range, thepredetermined range including the inputted specific turn count, maycause the output device to indicate the thread quality of the machinedthread needs further consideration.

The counting device may be an optical encoder, a mechanical encoder, anelectrical encoder, and/or a magnetic encoder.

The output device may display, in real-time, the number of turns thereference thread gauge has been rotated by the rotation device in thefirst direction.

The counting device may count the number of turns the reference threadgauge is rotated by the rotation device in the first direction.

The controller, when the monitored torque exceeds a predetermined value,may cause the rotation device to stop rotating the reference threadgauge in the first direction and to rotate the reference thread gauge ina second direction.

The counting device may count the number of turns the reference threadgauge is rotated by the rotation device in the second direction.

The counting device may count the number of turns the reference threadgauge is rotated by the rotation device in the first direction, thecount produced by the counting device being equal to an average betweenthe number of turns the reference thread gauge is rotated by therotation device in the first direction and the number of turns thereference thread gauge is rotated by the rotation device in the seconddirection.

The output device may display, in real-time, the number of turns thereference thread gauge has been rotated by the rotation device in thesecond direction.

The thread gauge inspection apparatus may include a receiving member tohold the reference thread gauge, the receiving member being operativelycoupled to the rotation device.

The thread gauge inspection apparatus may include a receiving member tohold the reference thread gauge; and a clutch mechanism operativelyconnected between the rotation device and the receiving member. Thecontroller causes the clutch mechanism to disengage the receiving memberfrom the rotation device when the monitored torque exceeds apredetermined value.

The output device may visually indicate that the rotation device hasstopped rotating the reference thread gauge in the first direction.

The output device may audibly indicate that the rotation device hasstopped rotating the reference thread gauge in the first direction.

A thread gauge inspection apparatus includes an input device to enableinputting of a specific turn count corresponding to inspection of athread quality of a machined thread; an output device to communicate aresult of the inspection of the thread quality of the machined thread; arotation device to bi-directionally rotate the reference thread gauge,the rotation device rotating the reference thread gauge in a firstdirection to drive the reference thread gauge into the machined threadbeing inspected; a counting device to count a number of turns thereference thread gauge is rotated by the rotation device; a ratchetingmechanism to cause the reference thread gauge to stop rotating in thefirst direction when a torque produced by the rotation device exceeds apredetermined value; and a controller operatively connected to the inputdevice, the rotation device, the counting device, and the torquemonitoring device. The controller, when the monitored torque exceeds apredetermined value, causes the rotation device to stop rotating thereference thread gauge in the first direction. The controller comparesthe count produced by the counting device with the inputted specificturn count. The controller, when the count produced by the countingdevice is equal to the inputted specific turn count, causes the outputdevice to indicate the thread quality of the machined thread passedinspection.

The controller, when the count produced by the counting device is lessthan the inputted specific turn count, may cause the output device toindicate the thread quality of the machined thread failed inspection.

The controller, when the count produced by the counting device isgreater than the inputted specific turn count, may cause the outputdevice to indicate the thread quality of the machined thread failedinspection.

The controller, when the count produced by the counting device is withina predetermined range, the predetermined range including the inputtedspecific turn count, may cause the output device to indicate the threadquality of the machined thread passed inspection.

The controller, when the count produced by the counting device isoutside a predetermined range, the predetermined range including theinputted specific turn count, may cause the output device to indicatethe thread quality of the machined thread failed inspection.

The controller, when the count produced by the counting device is lessthan a lower boundary value of a predetermined range, the predeterminedrange including the inputted specific turn count, may cause the outputdevice to indicate the thread quality of the machined thread failedinspection.

The controller, when the count produced by the counting device isgreater than an upper boundary value of a predetermined range, thepredetermined range including the inputted specific turn count, maycause the output device to indicate the thread quality of the machinedthread needs further consideration.

The counting device may be an optical encoder, a mechanical encoder, anelectrical encoder, and/or a magnetic encoder.

The output device may display, in real-time, the number of turns thereference thread gauge has been rotated by the rotation device in thefirst direction.

The counting device may count the number of turns the reference threadgauge is rotated by the rotation device in the first direction.

The controller, when the ratcheting mechanism causes the referencethread gauge to stop rotating in the first direction, may cause therotation device to rotate the reference thread gauge in a seconddirection.

The counting device may count the number of turns the reference threadgauge is rotated by the rotation device in the second direction.

The counting device may count the number of turns the reference threadgauge is rotated by the rotation device in the first direction, thecount produced by the counting device being equal to an average betweenthe number of turns the reference thread gauge is rotated by therotation device in the first direction and the number of turns thereference thread gauge is rotated by the rotation device in the seconddirection.

The output device may display, in real-time, the number of turns thereference thread gauge has been rotated by the rotation device in thesecond direction.

The thread gauge inspection apparatus may include a receiving member tohold the reference thread gauge, the receiving member being operativelycoupled to the ratcheting mechanism.

The output device may visually indicate that the ratcheting mechanismhas caused the reference thread gauge to stop rotating.

The output device may audibly indicate that the ratcheting mechanism hascaused the reference thread gauge to stop rotating.

A thread gauge inspection apparatus includes an input device to enableinputting of a specific turn count corresponding to inspection of athread quality of a machined thread; an output device to communicate aresult of the inspection of the thread quality of the machined thread; areceiving member to hold a reference thread gauge; a rotation device tobi-directionally rotate the reference thread gauge, the rotation devicerotating the reference thread gauge in a first direction; a countingdevice to count a number of turns the reference thread gauge is rotatedby the rotation device; a torque monitoring device to monitor the torqueproduced by the rotation device as the reference thread gauge is rotatedby the rotation device in the first direction; and a controlleroperatively connected to the input device, the rotation device, thecounting device, and the torque monitoring device. The controller, whenthe monitored torque exceeds a predetermined value, causes the rotationdevice to stop rotating the reference thread gauge in the firstdirection. The controller, when the monitored torque exceeds thepredetermined value, compares the count produced by the counting devicewith the inputted specific turn count. The controller, when the countproduced by the counting device is equal to the inputted specific turncount, causes the output device to indicate the thread quality of themachined thread passed inspection.

The controller, when the count produced by the counting device is lessthan the inputted specific turn count, may cause the output device toindicate the thread quality of the machined thread failed inspection.

The controller, when the count produced by the counting device isgreater than the inputted specific turn count, may cause the outputdevice to indicate the thread quality of the machined thread failedinspection.

The controller, when the count produced by the counting device is withina predetermined range, the predetermined range including the inputtedspecific turn count, may cause the output device to indicate the threadquality of the machined thread passed inspection.

The controller, when the count produced by the counting device isoutside a predetermined range, the predetermined range including theinputted specific turn count, may cause the output device to indicatethe thread quality of the machined thread failed inspection.

The controller, when the count produced by the counting device is lessthan a lower boundary value of a predetermined range, the predeterminedrange including the inputted specific turn count, may cause the outputdevice to indicate the thread quality of the machined thread failedinspection.

The controller, when the count produced by the counting device isgreater than an upper boundary value of a predetermined range, thepredetermined range including the inputted specific turn count, maycause the output device to indicate the thread quality of the machinedthread needs further consideration.

The counting device may be an optical encoder, a mechanical encoder, anelectrical encoder, and/or a magnetic encoder.

The output device may display, in real-time, the number of turns thereference thread gauge has been rotated by the rotation device in thefirst direction.

The controller, when the monitored torque exceeds a predetermined value,may cause the rotation device to stop rotating the reference threadgauge in the first direction and to rotate the reference thread gauge ina second direction.

The counting device may count a number of turns the reference threadgauge is rotated by the rotation device in the second direction.

The counting device may count a number of turns the reference threadgauge is rotated by the rotation device in the first direction.

A thread gauge inspection apparatus includes a receiving member to holda reference thread gauge; a rotation device to bi-directionally rotatethe reference thread gauge, the rotation device rotating the referencethread gauge in a first direction; a counting device to count a numberof turns the reference thread gauge is rotated by the rotation device;and an output device to communicate, in real-time, the number of turnsthe reference thread gauge has been rotated by the rotation device inthe first direction.

The thread gauge inspection apparatus may include a torque monitoringdevice to monitor the torque produced by the rotation device as thereference thread gauge is rotated by the rotation device in the firstdirection; and a controller operatively connected to the rotation deviceand the torque monitoring device. The controller, when the monitoredtorque exceeds a predetermined value, causes the rotation device to stoprotating the reference thread gauge in the first direction.

The counting device may be an optical encoder, a mechanical encoder, anelectrical encoder, and/or a magnetic encoder.

The controller, when the monitored torque exceeds a predetermined value,may cause the rotation device to stop rotating the reference threadgauge in the first direction and to rotate the reference thread gauge ina second direction.

The counting device may count a number of turns the reference threadgauge is rotated by the rotation device in the second direction.

The counting device may count a number of turns the reference threadgauge is rotated by the rotation device in the first direction.

A thread gauge inspection system includes a reference thread gaugehaving unique identification; a thread gauge inspection apparatus havinga receiving member to hold the reference thread gauge; and a controlsystem in operative communication with the thread gauge inspectionapparatus. The control system determines the status of the identifiedreference thread gauge, the status of the identified reference threadgauge being either approved for inspecting the thread quality of amachined thread or not approved for inspecting the thread quality of themachined thread. The control system communicates the determined statusof the identified reference thread gauge to the thread gauge inspectionapparatus.

The thread gauge inspection apparatus may include an input device toenable inputting the unique identification of the reference threadgauge.

The control system may include an input device to enable inputting theunique identification of the reference thread gauge.

The unique identification of the reference thread gauge may be machinereadable.

The thread gauge inspection apparatus may include an input device toenable reading of the unique identification of the reference threadgauge.

The control system may include an input device to enable reading of theunique identification of the reference thread gauge.

The thread gauge inspection apparatus may enter into an inoperativestate when the receiving member holds the identified reference threadgauge and the control system communicates the determined status of theidentified reference thread gauge is not approved for inspecting thethread quality of the machined thread.

The thread gauge inspection apparatus may visually display that thedetermined status of the identified reference thread gauge is notapproved for inspecting the thread quality of the machined thread whenthe control system communicates the determined status of the identifiedreference thread gauge is not approved for inspecting the thread qualityof the machined thread.

The thread gauge inspection apparatus may audibly indicate that thedetermined status of the identified reference thread gauge is notapproved for inspecting the thread quality of the machined thread whenthe control system communicates the determined status of the identifiedreference thread gauge is not approved for inspecting the thread qualityof the machined thread.

The thread gauge inspection apparatus may include a controller. Thecontroller tracks a usage amount the identified reference thread gaugeis used during an inspection process. The thread gauge inspectionapparatus communicates the tracked usage amount of the identifiedreference thread gauge to the control system. The control systemprocesses the communicated the tracked usage amount to maintain a usagehistory of the identified reference thread gauge. The control systemdetermines the status of the identified reference thread gauge basedupon the maintained usage history of the identified reference threadgauge.

The thread gauge inspection apparatus may include a rotation device tobi-directionally rotate the identified reference thread gauge. Thethread gauge inspection apparatus may include a counting device to counta number of turns the identified reference thread gauge is rotated bythe rotation device, the count being the tracked usage amount that thethread gauge inspection apparatus communicates to the control system.

The control system may wirelessly communicate with the thread gaugeinspection apparatus.

The unique identification may be realized by a radio frequencyidentification device in the reference thread gauge.

The unique identification may be realized by optically scannablemarkings on the reference thread gauge.

The unique identification may include information identifyingspecifications of the reference thread gauge.

The control system may reset the status of the identified referencethread gauge to approved for inspecting after the identified referencethread gauge has been re-calibrated.

A thread gauge inspection system includes a reference thread gaugehaving unique identification; and a thread gauge inspection apparatushaving a receiving member to hold the reference thread gauge, the threadgauge inspection apparatus acquiring the unique identification from thereference thread gauge. The thread gauge inspection apparatus includes acontroller to manage a status of the reference thread gauge and anoutput device. The controller receives the acquired uniqueidentification from the reference thread gauge. The controllerdetermines the status of the identified reference thread gauge, thestatus of the identified reference thread gauge being either approvedfor inspecting the thread quality of a machined thread or not approvedfor inspecting the thread quality of the machined thread. The outputdevice indicates the determined status of the identified referencethread gauge.

The thread gauge inspection apparatus may include an input device toenable inputting the unique identification of the reference threadgauge.

The unique identification of the reference thread gauge may be machinereadable.

The thread gauge inspection apparatus may include an input device toenable reading of the unique identification of the reference threadgauge.

The thread gauge inspection apparatus may enter into an inoperativestate when the receiving member holds the identified reference threadgauge and the controller determines the identified reference threadgauge is not approved for inspecting the thread quality of the machinedthread.

The thread gauge inspection apparatus may visually display that thedetermined status of the identified reference thread gauge is notapproved for inspecting the thread quality of the machined thread whenthe controller determines the identified reference thread gauge is notapproved for inspecting the thread quality of the machined thread.

The thread gauge inspection apparatus may audibly indicate that thedetermined status of the identified reference thread gauge is notapproved for inspecting the thread quality of the machined thread whenthe controller determines the identified reference thread gauge is notapproved for inspecting the thread quality of the machined thread.

The controller may track a usage amount the identified reference threadgauge is used during an inspection process. The controller processes thetracked usage amount to maintain a usage history of the identifiedreference thread gauge. The controller determines the status of theidentified reference thread gauge based upon the maintained usagehistory of the identified reference thread gauge.

The thread gauge inspection apparatus may include a rotation device tobi-directionally rotate the identified reference thread gauge. Thethread gauge inspection apparatus includes a counting device to count anumber of turns the identified reference thread gauge is rotated by therotation device, the count being the tracked usage amount.

The unique identification may be realized by a radio frequencyidentification device in the reference thread gauge.

The unique identification may be realized by optically scannablemarkings on the reference thread gauge.

The unique identification may include information identifyingspecifications of the reference thread gauge.

The controller may reset the status of the identified reference threadgauge to approved for inspecting after the identified reference threadgauge has been re-calibrated.

A thread gauge inspection system includes a reference thread gaugehaving unique identification; a thread gauge inspection apparatus havinga receiving member to hold the reference thread gauge; and a controlsystem in operative communication with the thread gauge inspectionapparatus. the thread gauge inspection apparatus includes a rotationdevice to bi-directionally rotate a reference thread gauge, the rotationdevice rotating the reference thread gauge, a counting device to count anumber of turns the reference thread gauge is rotated by the rotationdevice, and an output device to communicate the counted number of turnsthe reference thread gauge is rotated by the rotation device as a resultof an inspection of a thread quality of a machined thread. The controlsystem determines the status of the reference thread gauge, the statusof the reference thread gauge being either approved for inspecting thethread quality of a machined thread or not approved for inspecting thethread quality of the machined thread. The control system communicatesthe determined status of the reference thread gauge to the thread gaugeinspection apparatus.

The counting device may count a number of turns the reference threadgauge is rotated by the rotation device in the first direction, thefirst direction being a clockwise direction.

The counting device may count a number of turns the reference threadgauge is rotated by the rotation device in a second direction, thesecond direction being a counter-clockwise direction.

The thread gauge inspection apparatus may include a torque monitoringdevice to monitor the torque produced by the rotation device as thereference thread gauge is rotated by the rotation device in the firstdirection, the torque monitoring device causing the rotation device tostop rotating the reference thread gauge in the first direction when themonitored torque exceeds a predetermined value.

The thread gauge inspection apparatus may include a ratcheting mechanismto cause the reference thread gauge to stop rotating in the firstdirection when a torque produced by the rotation device exceeds apredetermined value.

The output device may display, in real-time, the number of turns thereference thread gauge has been rotated by the rotation device.

The torque monitoring device, when the monitored torque exceeds apredetermined value, may cause the rotation device to stop rotating thereference thread gauge in the first direction and to rotate thereference thread gauge in a second direction.

The thread gauge inspection apparatus may include a controller. Thecontroller, when the monitored torque exceeds a predetermined value,causes the rotation device to stop rotating the reference thread gaugein the first direction. The controller, when the monitored torqueexceeds the predetermined value, cause the counting device to stopcounting the number of turns the reference thread gauge is rotated bythe rotation device. The controller, when the monitored torque exceedsthe predetermined value, compares the count produced by the countingdevice with an inputted specific turn count. The controller, when thecount produced by the counting device is equal to the inputted specificturn count, causes the output device to indicate the thread quality ofthe machined thread passed inspection.

The thread gauge inspection apparatus may communicate to the controlsystem, when the count produced by the counting device is equal to theinputted specific turn count, information indicating that the threadquality of the machined thread passed inspection. The control systemstores the information received from the thread gauge inspectionapparatus.

The controller, when the count produced by the counting device is lessthan the inputted specific turn count, may cause the output device toindicate the thread quality of the machined thread failed inspection.The thread gauge inspection apparatus communicates to the controlsystem, when the count produced by the counting device is less than theinputted specific turn count, information indicating that the threadquality of the machined thread failed inspection.

The controller, when the count produced by the counting device isgreater than the inputted specific turn count, may cause the outputdevice to indicate the thread quality of the machined thread failedinspection. The thread gauge inspection apparatus communicates to thecontrol system, when the count produced by the counting device isgreater than the inputted specific turn count, information indicatingthat the thread quality of the machined thread failed inspection.

The controller, when the count produced by the counting device is withina predetermined range, the predetermined range including the inputtedspecific turn count, may cause the output device to indicate the threadquality of the machined thread passed inspection. The thread gaugeinspection apparatus communicates to the control system, when the countproduced by the counting device is within a predetermined range, thepredetermined range including the inputted specific turn count,information indicating that the thread quality of the machined threadpassed inspection.

The controller, when the count produced by the counting device isoutside a predetermined range, the predetermined range including theinputted specific turn count, may cause the output device to indicatethe thread quality of the machined thread failed inspection. The threadgauge inspection apparatus communicates to the control system, when thecount produced by the counting device is outside a predetermined range,the predetermined range including the inputted specific turn count,information indicating that the thread quality of the machined threadfailed inspection.

The controller, when the count produced by the counting device is lessthan a lower boundary value of a predetermined range, the predeterminedrange including the inputted specific turn count, may cause the outputdevice to indicate the thread quality of the machined thread failedinspection. The thread gauge inspection apparatus communicates to thecontrol system, when the count produced by the counting device is lessthan a lower boundary value of a predetermined range, the predeterminedrange including the inputted specific turn count, information indicatingthat the thread quality of the machined thread failed inspection.

The thread gauge inspection apparatus may include an input device toenable inputting the unique identification of the reference threadgauge.

The unique identification of the reference thread gauge may be machinereadable.

The thread gauge inspection apparatus may include an input device toenable reading of the unique identification of the reference threadgauge.

The control system may include an input device to enable inputting theunique identification of the reference thread gauge.

The thread gauge inspection apparatus may enter into an inoperativestate when the receiving member holds the reference thread gauge and thecontrol system communicates the determined status of the referencethread gauge is not approved for inspecting the thread quality of themachined thread.

The thread gauge inspection apparatus may display that the determinedstatus of the reference thread gauge is not approved for inspecting thethread quality of the machined thread when the control systemcommunicates the determined status of the reference thread gauge is notapproved for inspecting the thread quality of the machined thread.

The thread gauge inspection apparatus may include a controller. Thecontroller tracks a usage amount the reference thread gauge is usedduring an inspection process. The thread gauge inspection apparatuscommunicates the tracked usage amount of the reference thread gauge tothe control system. The control system processes the communicated thetracked usage amount to maintain a usage history of the reference threadgauge. The control system determines the status of the reference threadgauge based upon the maintained usage history of the reference threadgauge.

The count may be the tracked usage amount that the thread gaugeinspection apparatus communicates to the control system.

A thread gauge inspection system includes a reference thread gaugehaving unique identification; and a thread gauge inspection apparatushaving a receiving member to hold the reference thread gauge; and acontrol system in operative communication with the thread gaugeinspection apparatus. The thread gauge inspection apparatus includes aninput device to enable inputting of a specific turn count correspondingto inspection of a thread quality of a machined thread, an output deviceto communicate a result of the inspection of the thread quality of themachined thread, a rotation device to bi-directionally rotate thereference thread gauge, the rotation device rotating the referencethread gauge in a first direction, a counting device to count a numberof turns the reference thread gauge is rotated by the rotation device, atorque monitoring device to monitor the torque produced by the rotationdevice as the reference thread gauge is rotated by the rotation devicein the first direction, and a controller operatively connected to theinput device, the rotation device, the counting device, and the torquemonitoring device. The controller, when the monitored torque exceeds apredetermined value, causes the rotation device to stop rotating thereference thread gauge in the first direction. The controller comparesthe count produced by the counting device with the inputted specificturn count. The controller, when the count produced by the countingdevice is equal to the inputted specific turn count, causes the outputdevice to indicate the thread quality of the machined thread passedinspection. The control system determines the status of the referencethread gauge, the status of the reference thread gauge being eitherapproved for inspecting the thread quality of a machined thread or notapproved for inspecting the thread quality of the machined thread. Thecontrol system communicates the determined status of the referencethread gauge to the thread gauge inspection apparatus.

The counting device may count a number of turns the reference threadgauge is rotated by the rotation device in the first direction, thefirst direction being a clockwise direction.

The counting device may count a number of turns the reference threadgauge is rotated by the rotation device in a second direction, thesecond direction being a counter-clockwise direction.

The output device may display, in real-time, the number of turns thereference thread gauge has been rotated by the rotation device.

The torque monitoring device, when the monitored torque exceeds apredetermined value, may cause the rotation device to stop rotating thereference thread gauge in the first direction and to rotate thereference thread gauge in a second direction.

The thread gauge inspection apparatus may communicate to the controlsystem, when the count produced by the counting device is equal to theinputted specific turn count, information indicating that the threadquality of the machined thread passed inspection. The control systemstores the information received from the thread gauge inspectionapparatus.

The controller, when the count produced by the counting device is lessthan the inputted specific turn count, may cause the output device toindicate the thread quality of the machined thread failed inspection.The thread gauge inspection apparatus communicates to the controlsystem, when the count produced by the counting device is less than theinputted specific turn count, information indicating that the threadquality of the machined thread failed inspection.

The controller, when the count produced by the counting device isgreater than the inputted specific turn count, may cause the outputdevice to indicate the thread quality of the machined thread failedinspection. The thread gauge inspection apparatus communicates to thecontrol system, when the count produced by the counting device isgreater than the inputted specific turn count, information indicatingthat the thread quality of the machined thread failed inspection.

The controller, when the count produced by the counting device is withina predetermined range, the predetermined range including the inputtedspecific turn count, may cause the output device to indicate the threadquality of the machined thread passed inspection. The thread gaugeinspection apparatus communicates to the control system, when the countproduced by the counting device is within a predetermined range, thepredetermined range including the inputted specific turn count,information indicating that the thread quality of the machined threadpassed inspection.

The controller, when the count produced by the counting device isoutside a predetermined range, the predetermined range including theinputted specific turn count, may cause the output device to indicatethe thread quality of the machined thread failed inspection. The threadgauge inspection apparatus communicates to the control system, when thecount produced by the counting device is outside a predetermined range,the predetermined range including the inputted specific turn count,information indicating that the thread quality of the machined threadfailed inspection.

The controller, when the count produced by the counting device is lessthan a lower boundary value of a predetermined range, the predeterminedrange including the inputted specific turn count, may cause the outputdevice to indicate the thread quality of the machined thread failedinspection. The thread gauge inspection apparatus communicates to thecontrol system, when the count produced by the counting device is lessthan a lower boundary value of a predetermined range, the predeterminedrange including the inputted specific turn count, information indicatingthat the thread quality of the machined thread failed inspection.

The unique identification of the reference thread gauge may be machinereadable.

The thread gauge inspection apparatus may include an input device toenable reading of the unique identification of the reference threadgauge.

The control system may include an input device to enable inputting theunique identification of the reference thread gauge.

The thread gauge inspection apparatus may enter into an inoperativestate when the receiving member holds the reference thread gauge and thecontrol system communicates the determined status of the referencethread gauge is not approved for inspecting the thread quality of themachined thread.

The thread gauge inspection apparatus may display that the determinedstatus of the reference thread gauge is not approved for inspecting thethread quality of the machined thread when the control systemcommunicates the determined status of the reference thread gauge is notapproved for inspecting the thread quality of the machined thread.

The controller may track a usage amount the reference thread gauge isused during an inspection process. The thread gauge inspection apparatuscommunicates the tracked usage amount of the reference thread gauge tothe control system. The control system processes the communicated thetracked usage amount to maintain a usage history of the reference threadgauge. The control system determines the status of the reference threadgauge based upon the maintained usage history of the reference threadgauge.

The count may be the tracked usage amount that the thread gaugeinspection apparatus communicates to the control system.

A thread gauge inspection system includes a reference thread gaugehaving unique identification; a thread gauge inspection apparatus havinga receiving member to hold the reference thread gauge; and a controlsystem in operative communication with the thread gauge inspectionapparatus. The thread gauge inspection apparatus includes an inputdevice to enable inputting of a specific turn count corresponding toinspection of a thread quality of a machined thread, an output device tocommunicate a result of the inspection of the thread quality of themachined thread, a rotation device to bi-directionally rotate thereference thread gauge, the rotation device rotating the referencethread gauge in a first direction to drive the reference thread gaugeinto the threaded hole being inspected or onto the threaded stud beinginspected, a counting device to count a number of turns the referencethread gauge is rotated by the rotation device, a ratcheting mechanismto cause the reference thread gauge to stop rotating in the firstdirection when a torque produced by the rotation device exceeds apredetermined value, and a controller operatively connected to the inputdevice, the rotation device, the counting device, and the torquemonitoring device. The controller, when the monitored torque exceeds apredetermined value, causes the rotation device to stop rotating thereference thread gauge. The controller compares the count produced bythe counting device with the inputted specific turn count. Thecontroller, when the count produced by the counting device is equal tothe inputted specific turn count, causes the output device to indicatethe thread quality of the machined thread passed inspection. The controlsystem determines the status of the reference thread gauge, the statusof the reference thread gauge being either approved for inspecting thethread quality of a machined thread or not approved for inspecting thethread quality of the machined thread. The control system communicatesthe determined status of the reference thread gauge to the thread gaugeinspection apparatus.

The counting device may count a number of turns the reference threadgauge is rotated by the rotation device in the first direction, thefirst direction being a clockwise direction.

The counting device may count a number of turns the reference threadgauge is rotated by the rotation device in a second direction, thesecond direction being a counter-clockwise direction.

The output device may display, in real-time, the number of turns thereference thread gauge has been rotated by the rotation device.

The thread gauge inspection apparatus may communicate to the controlsystem, when the count produced by the counting device is equal to theinputted specific turn count, information indicating that the threadquality of the machined thread passed inspection. The control systemstores the information received from the thread gauge inspectionapparatus.

The controller, when the count produced by the counting device is lessthan the inputted specific turn count, may cause the output device toindicate the thread quality of the machined thread failed inspection.The thread gauge inspection apparatus communicates to the controlsystem, when the count produced by the counting device is less than theinputted specific turn count, information indicating that the threadquality of the machined thread failed inspection.

The controller, when the count produced by the counting device isgreater than the inputted specific turn count, may cause the outputdevice to indicate the thread quality of the machined thread failedinspection. The thread gauge inspection apparatus communicates to thecontrol system, when the count produced by the counting device isgreater than the inputted specific turn count, information indicatingthat the thread quality of the machined thread failed inspection.

The controller, when the count produced by the counting device is withina predetermined range, the predetermined range including the inputtedspecific turn count, may cause the output device to indicate the threadquality of the machined thread passed inspection. The thread gaugeinspection apparatus communicates to the control system, when the countproduced by the counting device is within a predetermined range, thepredetermined range including the inputted specific turn count,information indicating that the thread quality of the machined threadpassed inspection.

The controller, when the count produced by the counting device isoutside a predetermined range, the predetermined range including theinputted specific turn count, may cause the output device to indicatethe thread quality of the machined thread failed inspection. The threadgauge inspection apparatus communicates to the control system, when thecount produced by the counting device is outside a predetermined range,the predetermined range including the inputted specific turn count,information indicating that the thread quality of the machined threadfailed inspection.

The controller, when the count produced by the counting device is lessthan a lower boundary value of a predetermined range, the predeterminedrange including the inputted specific turn count, may cause the outputdevice to indicate the thread quality of the machined thread failedinspection. The thread gauge inspection apparatus communicates to thecontrol system, when the count produced by the counting device is lessthan a lower boundary value of a predetermined range, the predeterminedrange including the inputted specific turn count, information indicatingthat the thread quality of the machined thread failed inspection.

The unique identification of the reference thread gauge may be machinereadable.

The thread gauge inspection apparatus may include an input device toenable reading of the unique identification of the reference threadgauge.

The control system may include an input device to enable inputting theunique identification of the reference thread gauge.

The thread gauge inspection apparatus may enter into an inoperativestate when the receiving member holds the reference thread gauge and thecontrol system communicates the determined status of the referencethread gauge is not approved for inspecting the thread quality of themachined thread.

The thread gauge inspection apparatus may display that the determinedstatus of the reference thread gauge is not approved for inspecting thethread quality of the machined thread when the control systemcommunicates the determined status of the reference thread gauge is notapproved for inspecting the thread quality of the machined thread.

The controller may track a usage amount the reference thread gauge isused during an inspection process. The thread gauge inspection apparatuscommunicates the tracked usage amount of the reference thread gauge tothe control system. The control system processes the communicated thetracked usage amount to maintain a usage history of the reference threadgauge. The control system determines the status of the reference threadgauge based upon the maintained usage history of the reference threadgauge.

The count may be the tracked usage amount that the thread gaugeinspection apparatus communicates to the control system.

It will be appreciated that various of the above-disclosed and otherfeatures and functions, or alternatives thereof, may be desirablycombined into many other different systems or applications. Also thatvarious presently unforeseen or unanticipated alternatives,modifications, variations or improvements therein may be subsequentlymade by those skilled in the art which are also intended to beencompassed by the following claims.

What is claimed is:
 1. A thread gauge inspection system, comprising: areference thread gauge having unique identification; a thread gaugeinspection apparatus having a receiving member to hold said referencethread gauge; and a control system in operative communication with saidthread gauge inspection apparatus; said thread gauge inspectionapparatus including, a rotation device to bi-directionally rotate areference thread gauge, said rotation device rotating the referencethread gauge, a counting device to count a number of turns the referencethread gauge is rotated by said rotation device, and an output device tocommunicate the counted number of turns the reference thread gauge isrotated by said rotation device as a result of an inspection of a threadquality of a machined thread; said control system determining the statusof the reference thread gauge, the status of the reference thread gaugebeing either approved for inspecting the thread quality of a machinedthread or not approved for inspecting the thread quality of the machinedthread; said control system communicating the determined status of thereference thread gauge to said thread gauge inspection apparatus.
 2. Thethread gauge inspection apparatus as claimed in claim 1, wherein saidcounting device counts a number of turns the reference thread gauge isrotated by said rotation device in said first direction, said firstdirection being a clockwise direction.
 3. The thread gauge inspectionapparatus as claimed in claim 1, wherein said counting device counts anumber of turns the reference thread gauge is rotated by said rotationdevice in a second direction, said second direction being acounter-clockwise direction.
 4. The thread gauge inspection apparatus asclaimed in claim 1, further comprising: a torque monitoring device tomonitor the torque produced by said rotation device as the referencethread gauge is rotated by said rotation device in said first direction;said torque monitoring device causing said rotation device to stoprotating the reference thread gauge in said first direction when themonitored torque exceeds a predetermined value.
 5. The thread gaugeinspection apparatus as claimed in claim 1, further comprising: aratcheting mechanism to cause the reference thread gauge to stoprotating in said first direction when a torque produced by said rotationdevice exceeds a predetermined value.
 6. The thread gauge inspectionapparatus, as claimed in claim 1, wherein said output device displays,in real-time, the number of turns the reference thread gauge has beenrotated by said rotation device.
 7. The thread gauge inspectionapparatus, as claimed in claim 4, wherein said torque monitoring device,when the monitored torque exceeds a predetermined value, causes saidrotation device to stop rotating the reference thread gauge in the firstdirection and to rotate the reference thread gauge in a seconddirection.
 8. The thread gauge inspection apparatus, as claimed in claim1, wherein said thread gauge inspection apparatus further includes acontroller; said controller, when the monitored torque exceeds apredetermined value, causing said rotation device to stop rotating thereference thread gauge in the first direction; said controller, when themonitored torque exceeds the predetermined value, causing said countingdevice to stop counting the number of turns the reference thread gaugeis rotated by said rotation device; said controller, when the monitoredtorque exceeds the predetermined value, comparing the count produced bysaid counting device with an inputted specific turn count; saidcontroller, when the count produced by said counting device is equal tothe inputted specific turn count, causing said output device to indicatethe thread quality of the machined thread passed inspection.
 9. Thethread gauge inspection apparatus, as claimed in claim 8, wherein saidthread gauge inspection apparatus communicates to said control system,when the count produced by said counting device is equal to the inputtedspecific turn count, information indicating that the thread quality ofthe machined thread passed inspection; said control system storing theinformation received from said thread gauge inspection apparatus. 10.The thread gauge inspection system, as claimed in claim 8, wherein saidcontroller, when the count produced by said counting device is less thanthe inputted specific turn count, causes said output device to indicatethe thread quality of the machined thread failed inspection; said threadgauge inspection apparatus communicating to said control system, whenthe count produced by said counting device is less than the inputtedspecific turn count, information indicating that the thread quality ofthe machined thread failed inspection.
 11. The thread gauge inspectionsystem, as claimed in claim 8, wherein said controller, when the countproduced by said counting device is greater than the inputted specificturn count, causes said output device to indicate the thread quality ofthe machined thread failed inspection; said thread gauge inspectionapparatus communicating to said control system, when the count producedby said counting device is greater than the inputted specific turncount, information indicating that the thread quality of the machinedthread failed inspection.
 12. The thread gauge inspection system, asclaimed in claim 8, wherein said controller, when the count produced bysaid counting device is within a predetermined range, the predeterminedrange including the inputted specific turn count, causes said outputdevice to indicate the thread quality of the machined thread passedinspection; said thread gauge inspection apparatus communicating to saidcontrol system, when the count produced by said counting device iswithin a predetermined range, the predetermined range including theinputted specific turn count, information indicating that the threadquality of the machined thread passed inspection.
 13. The thread gaugeinspection system, as claimed in claim 8, wherein said controller, whenthe count produced by said counting device is outside a predeterminedrange, the predetermined range including the inputted specific turncount, causes said output device to indicate the thread quality of themachined thread failed inspection; said thread gauge inspectionapparatus communicating to said control system, when the count producedby said counting device is outside a predetermined range, thepredetermined range including the inputted specific turn count,information indicating that the thread quality of the machined threadfailed inspection.
 14. The thread gauge inspection system, as claimed inclaim 8, wherein said controller, when the count produced by saidcounting device is less than a lower boundary value of a predeterminedrange, the predetermined range including the inputted specific turncount, causes said output device to indicate the thread quality of themachined thread failed inspection; said thread gauge inspectionapparatus communicating to said control system, when the count producedby said counting device is less than a lower boundary value of apredetermined range, the predetermined range including the inputtedspecific turn count, information indicating that the thread quality ofthe machined thread failed inspection.
 15. The thread gauge inspectionsystem, as claimed in claim 1, wherein said thread gauge inspectionapparatus includes an input device to enable inputting the uniqueidentification of said reference thread gauge.
 16. The thread gaugeinspection system, as claimed in claim 1, wherein the uniqueidentification of said reference thread gauge is machine readable. 17.The thread gauge inspection system, as claimed in claim 16, wherein saidthread gauge inspection apparatus includes an input device to enablereading of the unique identification of said reference thread gauge. 18.The thread gauge inspection system, as claimed in claim 1, wherein saidcontrol system includes an input device to enable inputting the uniqueidentification of said reference thread gauge.
 19. The thread gaugeinspection system, as claimed in claim 1, wherein said thread gaugeinspection apparatus enters into an inoperative state when saidreceiving member holds said reference thread gauge and said controlsystem communicates the determined status of said reference thread gaugeis not approved for inspecting the thread quality of the machinedthread.
 20. The thread gauge inspection system, as claimed in claim 1,wherein said thread gauge inspection apparatus displays that thedetermined status of said reference thread gauge is not approved forinspecting the thread quality of the machined thread when said controlsystem communicates the determined status of the reference thread gaugeis not approved for inspecting the thread quality of the machinedthread.
 21. The thread gauge inspection system, as claimed in claim 1,wherein said thread gauge inspection apparatus includes a controller;said controller tracking a usage amount said reference thread gauge isused during an inspection process; said thread gauge inspectionapparatus communicating the tracked usage amount of said referencethread gauge to said control system; said control system processing thecommunicated the tracked usage amount to maintain a usage history ofsaid reference thread gauge; said control system determining the statusof said reference thread gauge based upon the maintained usage historyof said reference thread gauge.
 22. The thread gauge inspection system,as claimed in claim 21, wherein said count is the tracked usage amountthat said thread gauge inspection apparatus communicates to said controlsystem.